package net.bwie.realtime.jtp.dwd.log.function;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import net.bwie.realtime.jtp.utils.DateTimeUtil;
import org.apache.flink.api.common.state.ValueState;
import org.apache.flink.api.common.state.ValueStateDescriptor;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.streaming.api.functions.KeyedProcessFunction;
import org.apache.flink.util.Collector;

public class IsNewFunction2 extends KeyedProcessFunction<String,String,String> {
    private transient ValueState<String> firstDataState=null;

    @Override
    public void open(Configuration parameters) throws Exception {
        firstDataState=
                getRuntimeContext().getState(new ValueStateDescriptor<String >("first-date",String.class));
    }

    @Override
    public void processElement(String value,Context ctx, Collector<String> out) throws Exception {
        String firstDate = firstDataState.value();

        JSONObject jsonObject = JSON.parseObject(value);
        String isNewValue = jsonObject.getJSONObject("common").getString("is_new");
        Long tsValue = jsonObject.getLong("ts");

        if ("1".equals(isNewValue)){
            if (null==firstDate){
                firstDataState.update(DateTimeUtil.convertLongToString(tsValue,DateTimeUtil.DATE_FORMAT));
            }else {
                if (!firstDate.equals(DateTimeUtil.convertLongToString(tsValue,DateTimeUtil.DATE_FORMAT))){
                    jsonObject.getJSONObject("common").put("is_new","0");
                }
            }
        }else {
            if (null==firstDate){
                firstDataState.update(DateTimeUtil.convertLongToString(tsValue-86400000,DateTimeUtil.DATE_FORMAT));
            }
        }
        //输出数据
        out.collect(jsonObject.toJSONString());
    }
}
